APPd

һ pd

̫ƽ܇W(wng) > ˹(dng) > ˹1.6(dng)(wn)}

˹1.6(dng)(wn)}

1 2

Ʒƣ

܇ͣ ˹

ٷr(ji) o(w)(bo)r(ji)

܇ģDƬ

˹x}

ʾ

_

֮ܲ鿴܇ҵĺ܇тĻ؏(f)Ŷ

Ҫᆖ(wn) ᆖ(wn)